diff --git a/script/postdeployment/MockSetupPostEnvironment.s.sol b/script/postdeployment/MockSetupPostEnvironment.s.sol
index 4a319ff..bec12ab 100644
--- a/script/postdeployment/MockSetupPostEnvironment.s.sol
+++ b/script/postdeployment/MockSetupPostEnvironment.s.sol
@@ -11,6 +11,15 @@ import {MintableERC20} from '@contracts/for-test/MintableERC20.sol';
 import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 import {Router} from '@contracts/for-test/Router.sol';
 
+interface IVault721 {
+  function getProxy(address _user) external view returns (address);
+  function build(address _user) external returns (address payable);
+}
+
+interface ODProxy {
+  function execute(address _target, bytes memory _data) external returns (bytes memory);
+}
+
 // BROADCAST
 // source .env && forge script MockSetupPostEnvironment --with-gas-price 2000000000 -vvvvv --rpc-url $ARB_SEPOLIA_RPC --broadcast --verify --etherscan-api-key $ARB_ETHERSCAN_API_KEY
 
@@ -20,6 +29,7 @@ import {Router} from '@contracts/for-test/Router.sol';
 contract MockSetupPostEnvironment is CommonSepolia {
   IAlgebraFactory public algebraFactory = IAlgebraFactory(SEPOLIA_ALGEBRA_FACTORY);
   MintableERC20 public mockWeth;
+  MintableERC20 public mockWsteth = MintableERC20(0x5Ae92E2cBce39b74f149B7dA16d863382397d4a7);
 
   function run() public {
     vm.startBroadcast(vm.envUint('ARB_SEPOLIA_DEPLOYER_PK'));
@@ -48,8 +58,8 @@ contract MockSetupPostEnvironment is CommonSepolia {
     IERC20(mockWeth).balanceOf(_pool);
 
     // mint SystemCoin and Weth to use as liquidity
-    mintSystemCoin();
     mintMockWeth();
+    mintSystemCoin();
 
     // deploy Router for AlgebraPool
     Router _router = new Router(IAlgebraPool(_pool), deployer);
@@ -73,10 +83,41 @@ contract MockSetupPostEnvironment is CommonSepolia {
     mockWeth.mint(deployer, MINT_AMOUNT);
   }
 
+  // todo: remove `magic` numbers - refactor
   function mintSystemCoin() public {
-    (bool ok,) =
-      SEPOLIA_SYSTEM_COIN.call{value: 0}(abi.encodeWithSignature('mint(address,uint256)', deployer, MINT_AMOUNT));
-    require(ok, 'MintFail');
+    IVault721 vault721 = IVault721(0xa602c0cFf8028Dd4c99fbC5e85cF0c083C5b991A);
+    address _safeManager = 0x8ca7D88eaFB6f666997Ca0F62Beddd8A09a62910;
+    address _basicActions = 0x60487E0a0eFbfbD30908b03ea6b7833E2520604F;
+    address _coinJoin = 0x93544B224AB94F2b568CaeD5A074f4217fC782c7;
+    address _collateralJoin_wsteth = 0x52400D3AEB82b0923898D918be51439A9198D980;
+
+    // create proxy for deployer
+    address _proxy = vault721.getProxy(deployer);
+    if (_proxy == address(0)) {
+      _proxy = vault721.build(deployer);
+    }
+
+    // create safe for deployer
+    bytes memory _payload =
+      abi.encodeWithSignature('openSAFE(address,bytes32,address)', _safeManager, bytes32('WSTETH'), _proxy);
+    bytes memory _safeData = ODProxy(_proxy).execute(_basicActions, _payload);
+    uint256 _safeId = abi.decode(_safeData, (uint256));
+
+    // mint token
+    mockWsteth.mint(deployer, MINT_AMOUNT);
+    IERC20(mockWsteth).approve(_proxy, MINT_AMOUNT);
+
+    // lock collateral & generate debt
+    bytes memory payload = abi.encodeWithSignature(
+      'lockTokenCollateralAndGenerateDebt(address,address,address,uint256,uint256,uint256)',
+      _safeManager,
+      _collateralJoin_wsteth,
+      _coinJoin,
+      _safeId,
+      850_000_000_000_000_000,
+      500_000_000_000_000_000_000
+    );
+    ODProxy(_proxy).execute(_basicActions, payload);
   }
 
   function generateTickParams(IAlgebraPool pool) public view returns (int24 bottomTick, int24 topTick) {